Format number to 2 decimal places

Question

I would like to know how can I output a number with 2 decimal places, without rounding the original number.

For example:

2229,999 -> 2229,99

I already tried:

FORMAT(2229.999, 2)
CONVERT(2229.999, DECIMAL(4,2))

Answer 1

When formatting number to 2 decimal places you have two options TRUNCATE and ROUND. You are looking for TRUNCATE function.

Examples:

Without rounding:

TRUNCATE(0.166, 2)
-- will be evaluated to 0.16

TRUNCATE(0.164, 2)
-- will be evaluated to 0.16

docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-truncate-function.php

With rounding:

ROUND(0.166, 2)
-- will be evaluated to 0.17

ROUND(0.164, 2)
-- will be evaluated to 0.16

docs: http://www.w3resource.com/mysql/mathematical-functions/mysql-round-function.php